78 lines
2.0 KiB
C++
78 lines
2.0 KiB
C++
/*
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* Copyright 2016 WebAssembly Community Group participants
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef WABT_IR_UTIL_H_
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#define WABT_IR_UTIL_H_
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#include "wabt/common.h"
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#include "wabt/ir.h"
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namespace wabt {
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struct Label {
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Label(LabelType label_type,
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const std::string& name,
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const TypeVector& param_types,
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const TypeVector& result_types)
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: name(name),
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label_type(label_type),
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param_types(param_types),
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result_types(result_types) {}
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std::string name;
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LabelType label_type;
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TypeVector param_types;
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TypeVector result_types;
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};
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struct ModuleContext {
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ModuleContext(const Module& module) : module(module) {}
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Index GetLabelStackSize() const { return label_stack_.size(); }
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const Label* GetLabel(const Var& var) const;
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Index GetLabelArity(const Var& var) const;
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void SetTopLabelType(LabelType label_type) {
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label_stack_.back().label_type = label_type;
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}
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Index GetFuncParamCount(const Var& var) const;
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Index GetFuncResultCount(const Var& var) const;
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void BeginBlock(LabelType label_type, const Block& block);
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void EndBlock();
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void BeginFunc(const Func& func);
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void EndFunc();
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struct Arities {
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Index nargs;
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Index nreturns;
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bool unreachable;
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Arities(Index na, Index nr, bool ur = false)
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: nargs(na), nreturns(nr), unreachable(ur) {}
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};
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Arities GetExprArity(const Expr& expr) const;
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const Module& module;
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private:
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const Func* current_func_ = nullptr;
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std::vector<Label> label_stack_;
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};
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} // namespace wabt
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#endif /* WABT_IR_UTIL_H_ */
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